12405880

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{937}}^1$

素因数の和:1279

約数の個数: 32

約数和(自身を含む): 28027440

約数和(自身を除く): 15621560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 937, 1324, 1655, 1874, 2648, 3310, 3748, 4685, 6620, 7496, 9370, 13240, 18740, 37480, 310147, 620294, 1240588, 1550735, 2481176, 3101470, 6202940, 12405880]

約数ペア:

[(1, 12405880), (2, 6202940), (4, 3101470), (5, 2481176), (8, 1550735), (10, 1240588), (20, 620294), (40, 310147), (331, 37480), (662, 18740), (937, 13240), (1324, 9370), (1655, 7496), (1874, 6620), (2648, 4685), (3310, 3748)]